Installation related changes.

CMakeLists.txt

 
 
 add_library(ScopeGuard INTERFACE)
-target_include_directories(ScopeGuard INTERFACE "include")
+target_include_directories(ScopeGuard INTERFACE
+                       $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
+                       $<INSTALL_INTERFACE:include>)
 
 
 if( UNITTEST )

cmake/Install.cmake

 
-include(GNUInstallDirs)
-
-install(TARGETS ScopeGuard
-                LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-                ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-                RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-                )
-
+install(TARGETS ScopeGuard EXPORT ScopeGuard-config DESTINATION include)
+install(EXPORT ScopeGuard-config DESTINATION share/scopeguard/cmake)